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Experimental implementation of a Raman-assisted eight-wave mixing process

Shantanu O. Mundhada 1 Alexander Grimm 1 Jayameenakshi Venkatraman 1 Zlatko K. Minev 1 Steven Touzard 1 Nicholas E. Frattini 1 Volodymyr V. Sivak 1 Katrina Sliwa 1 Philip Reinhold 1 Shyam Shankar 1 Mazyar Mirrahimi 2 Michel H. Devoret 1
2 QUANTIC - QUANTum Information Circuits
ENS Paris - École normale supérieure - Paris, MINES ParisTech - École nationale supérieure des mines de Paris, SU - Sorbonne Université, Inria de Paris
Abstract : Nonlinear processes in the quantum regime are essential for many applications, such as quantum-limited amplification, measurement, and control of quantum systems. In particular, the field of quantum error correction relies heavily on high-order nonlinear interactions between various modes of a quantum system. However, the required order of nonlinearity is often not directly available or weak compared to dissipation present in the system. Here, we experimentally demonstrate a route to obtain higher-order nonlinearity by combining more easily available lower-order nonlinear processes, using a generalization of the Raman transition. In particular, we show a transformation of four photons of a high-Q superconducting resonator into two excitations of a superconducting transmon mode and two pump photons, and vice versa. The resulting eight-wave mixing process is obtained by cascading two fourth-order nonlinear processes through a virtual state. We expect this type of process to become a key component of hardware-efficient quantum error correction using continuous-variable error-correction codes.
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https://hal.inria.fr/hal-01936696
Contributor : Mazyar Mirrahimi <>
Submitted on : Tuesday, November 27, 2018 - 3:25:23 PM
Last modification on : Wednesday, October 14, 2020 - 3:52:22 AM

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Shantanu O. Mundhada, Alexander Grimm, Jayameenakshi Venkatraman, Zlatko K. Minev, Steven Touzard, et al.. Experimental implementation of a Raman-assisted eight-wave mixing process. Physical Review Applied, American Physical Society, 2019, ⟨10.1103/PhysRevApplied.12.054051⟩. ⟨hal-01936696⟩

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